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How do I check if file exists in jQuery or pure JavaScript?
...ajax({
url:'http://www.example.com/somefile.ext',
type:'HEAD',
error: function()
{
//file not exists
},
success: function()
{
//file exists
}
});
EDIT:
Here is the code for checking 404 status, without using jQuery
function UrlExists(url)
{
var...
Convert List to List
...
But what if you want to choose for a runtime crash instead of a compile error? You would normally use Cast<> or ConvertAll<> but then you will have 2 problems: It will create a copy of the list. If you add or remove something in the new list, this won't be reflected in the original li...
How to terminate a Python script
...ally
underdeveloped; Unix programs generally use 2 for command line syntax
errors and 1 for all other kind of errors. If another type of object
is passed, None is equivalent to passing zero, and any other object is
printed to stderr and results in an exit code of 1. In particular,
sys.exit("some err...
TypeError: 'module' object is not callable
Why am I getting this error?
I'm confused.
11 Answers
11
...
Determine path of the executing script
...
Got the same error, with a saved scriptt and freshly installed and run R 3.2.0 on windows...
– RalfB
May 20 '15 at 9:57
...
Encrypt and decrypt a string in C#?
...yptKey, byte[] authKey, byte[] nonSecretPayload = null)
{
//User Error Checks
if (cryptKey == null || cryptKey.Length != KeyBitSize / 8)
throw new ArgumentException(String.Format("Key needs to be {0} bit!", KeyBitSize), "cryptKey");
if (authKey == null || authKey.Lengt...
Capturing console output from a .NET application (C#)
...cumentation; the only caveat is that you may have to redirect the standard error stream as well to see all output of your application.
Process compiler = new Process();
compiler.StartInfo.FileName = "csc.exe";
compiler.StartInfo.Arguments = "/r:System.dll /out:sample.exe stdstr.cs";
compiler.StartI...
Uploading base64 encoded Image to Amazon S3 via Node.js
...r, data){
if (err) {
console.log(err);
console.log('Error uploading data: ', data);
} else {
console.log('succesfully uploaded the image!');
}
});
s3_config.json file is:-
{
"accessKeyId":"xxxxxxxxxxxxxxxx",
"secretAccessKey":"xxxxxxxxxxxxxx",
"...
Reset Entity-Framework Migrations
...
^^ Figured it out -- it was a TFS error -- if you're using TFS you need to perform a check-in before running the "Enable-Migrations ..." command. :D
– BrainSlugs83
Jun 17 '13 at 8:56
...
How do I POST urlencoded form data with $http without jQuery?
...(function(response) {
// on success
}, function(response) {
// on error
});
Works like a charm with AngularJS 1.5
People, let give u some advice:
use promises .then(success, error) when dealing with $http, forget about .sucess and .error callbacks (as they are being deprecated)
From t...